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Title: CESM1(WACCM) Stratospheric Aerosol Geoengineering Large Ensemble Project

Abstract

This paper describes the stratospheric aerosol geoengineering large ensemble (GLENS) project, which promotes the use of an unique model dataset, performed with Community Earth System Model, using the Whole Atmosphere Community Climate Model as its atmospheric component (CESM1(WACCM)), to investigate global and regional impacts of geoengineering. The performed simulations target multiple simultaneous climate goals unlike many earlier studies that targeted globally averaged surface temperature. This strategic approach is expected to reduce some of the previously found adverse effects of stratospheric aerosol geoengineering, including uneven cooling between the poles and equator and shifts in tropical precipitation. An ensemble of 20 members allows the identification of forced changes in global and regional climate variables in the coupled atmosphere, land, sea-ice, and ocean system in the presence of internal variability. Here, we invite the broader community to perform in-depth analysis of climate related impacts and to identify processes that lead to changes in the climate system as the result of a strategic application of stratospheric aerosol geoengineering. (Capsule Summary) A community project that enables analysis of robust global and regional changes resulting from strategic stratospheric aerosol geoengineering in the presence of internal climate variability.

Authors:
 [1];  [1];  [2];  [3];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. National Center for Atmospheric Research, Boulder, CO (United States)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Cornell Univ., Ithaca, NY (United States); California Inst. of Technology (CalTech), Pasadena, CA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1497049
Report Number(s):
PNNL-SA-132201
Journal ID: ISSN 0003-0007
Grant/Contract Number:  
AC05-76RL01830
Resource Type:
Accepted Manuscript
Journal Name:
Bulletin of the American Meteorological Society
Additional Journal Information:
Journal Volume: 99; Journal Issue: 11; Journal ID: ISSN 0003-0007
Publisher:
American Meteorological Society
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES

Citation Formats

Tilmes, Simone, Richter, Jadwiga H., Kravitz, Ben, MacMartin, Douglas G., Mills, Michael J., Simpson, Isla R., Glanville, Anne S., Fasullo, John T., Phillips, Adam S., Lamarque, Jean -Francois, Tribbia, Joseph, Edwards, Jim, Mickelson, Sheri, and Ghosh, Siddhartha. CESM1(WACCM) Stratospheric Aerosol Geoengineering Large Ensemble Project. United States: N. p., 2018. Web. doi:10.1175/BAMS-D-17-0267.1.
Tilmes, Simone, Richter, Jadwiga H., Kravitz, Ben, MacMartin, Douglas G., Mills, Michael J., Simpson, Isla R., Glanville, Anne S., Fasullo, John T., Phillips, Adam S., Lamarque, Jean -Francois, Tribbia, Joseph, Edwards, Jim, Mickelson, Sheri, & Ghosh, Siddhartha. CESM1(WACCM) Stratospheric Aerosol Geoengineering Large Ensemble Project. United States. https://doi.org/10.1175/BAMS-D-17-0267.1
Tilmes, Simone, Richter, Jadwiga H., Kravitz, Ben, MacMartin, Douglas G., Mills, Michael J., Simpson, Isla R., Glanville, Anne S., Fasullo, John T., Phillips, Adam S., Lamarque, Jean -Francois, Tribbia, Joseph, Edwards, Jim, Mickelson, Sheri, and Ghosh, Siddhartha. Wed . "CESM1(WACCM) Stratospheric Aerosol Geoengineering Large Ensemble Project". United States. https://doi.org/10.1175/BAMS-D-17-0267.1. https://www.osti.gov/servlets/purl/1497049.
@article{osti_1497049,
title = {CESM1(WACCM) Stratospheric Aerosol Geoengineering Large Ensemble Project},
author = {Tilmes, Simone and Richter, Jadwiga H. and Kravitz, Ben and MacMartin, Douglas G. and Mills, Michael J. and Simpson, Isla R. and Glanville, Anne S. and Fasullo, John T. and Phillips, Adam S. and Lamarque, Jean -Francois and Tribbia, Joseph and Edwards, Jim and Mickelson, Sheri and Ghosh, Siddhartha},
abstractNote = {This paper describes the stratospheric aerosol geoengineering large ensemble (GLENS) project, which promotes the use of an unique model dataset, performed with Community Earth System Model, using the Whole Atmosphere Community Climate Model as its atmospheric component (CESM1(WACCM)), to investigate global and regional impacts of geoengineering. The performed simulations target multiple simultaneous climate goals unlike many earlier studies that targeted globally averaged surface temperature. This strategic approach is expected to reduce some of the previously found adverse effects of stratospheric aerosol geoengineering, including uneven cooling between the poles and equator and shifts in tropical precipitation. An ensemble of 20 members allows the identification of forced changes in global and regional climate variables in the coupled atmosphere, land, sea-ice, and ocean system in the presence of internal variability. Here, we invite the broader community to perform in-depth analysis of climate related impacts and to identify processes that lead to changes in the climate system as the result of a strategic application of stratospheric aerosol geoengineering. (Capsule Summary) A community project that enables analysis of robust global and regional changes resulting from strategic stratospheric aerosol geoengineering in the presence of internal climate variability.},
doi = {10.1175/BAMS-D-17-0267.1},
journal = {Bulletin of the American Meteorological Society},
number = 11,
volume = 99,
place = {United States},
year = {Wed Dec 12 00:00:00 EST 2018},
month = {Wed Dec 12 00:00:00 EST 2018}
}

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